<template>
  <div>
          <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card class="box-card">
        <!-- 搜索与添加区域 -->
         <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getUserList'>
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type='primary' @click="addDialogVisible=true">添加用户</el-button>
            </el-col>
        </el-row> 
         <!-- 用户列表区域 -->
         <el-table :data='userlist' border stripe>
             <el-table-column type='index'></el-table-column>
            <el-table-column label='姓名' prop='username'></el-table-column>
            <el-table-column label='邮箱' prop='email'></el-table-column>
            <el-table-column label='电话' prop='mobile'></el-table-column>
            <el-table-column label='角色' prop='role_name'></el-table-column>
            <el-table-column label='状态'>
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                </template>
            </el-table-column>
            <el-table-column label='操作' width='185px'>
                <template slot-scope="scope">
                    <div>
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size='mini' @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size='mini'  @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable='false'>
                         <el-button type="warning" icon="el-icon-setting" size='mini' @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </div>
                </template>
            </el-table-column>
         </el-table>
         <!-- 分页区域 -->
         <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1,2,5,10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
        </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
        <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%" @close='addDialogClosed'>
        <!-- 内容主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
        </el-dialog>     
    <!-- 修改用户对话框 -->
        <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisble"
        width="50%" @close='editDialogClosed'>
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
            <el-form-item label="用户名">
                <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop='email'>
                <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop='mobile'>
                <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisble = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%"
        @close="setRoleDialogClosed">
        <div>
            <p>当前的用户：{{userinfo.username}}</p>
            <p>当前的角色：{{userinfo.role_name}}</p>
            <p>分配新角色：
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                    v-for="item in rolesList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                    </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
        </el-dialog>
  </div>
</template>

<script>
        //验证邮箱的规则
         var checkEmail = (rule,value,cb)=>{
            //验证手机号的正则表达式
            const regEmail=/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
            if(regEmail.test(value)){
               return cb()
            }
            cb(new Error('请输入合法的邮箱')) 
        }
         var checkMobile = (rule,value,cb)=>{
            //验证手机号的正则表达式
            const regMobile=/^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]18[0-9]14[57])[0-9]{8}$/
            if(regMobile.test(value)){
               return cb()
            }
            cb(new Error('请输入合法的手机号')) 
        }
export default {
    name:'User',
    data() {
        return {
          //获取用户列表的参数对象 
          queryInfo:{
            query:'',
            //当前的页数
            pagenum:1,
            //当前每页显示多少条数据
            pagesize:2 
          },
          userlist:[],
          total:0,
          //控制对话框的显示与隐藏
          addDialogVisible:false,
          //添加用户的表单数据
          addForm:{
              username:'',
              password:'',
              email:'',
              mobile:''
          },
          //添加表单的验证规则对象
          addFormRules:{
              username:[
                { required: true, message: '请输入用户名', trigger: 'blur' },
                { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
              ],
              password:[
                { required: true, message: '请输入密码', trigger: 'blur' },
                { min:6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
              ],
              email:[
                { required: true, message: '请输入邮箱', trigger: 'blur' },
                { validator:checkEmail,trigger:'blur' }
              ],
              mobile:[
                { required: true, message: '请输入手机号', trigger: 'blur' },
                { validator:checkMobile,trigger:'blur' }
              ]
          },
          //控制修改用户框的显示与隐藏
          editDialogVisble:false,
          //查询到的用户信息对象
          editForm:{},
          //修改表单的验证规则对象
          editFormRules:{
              email:[
                { required: true, message: '请输入用户邮箱', trigger: 'blur' },
                { validator:checkEmail,trigger:'blur'}
              ],
              mobile:[
                { required: true, message: '请输入用户手机', trigger: 'blur' },
                { validator:checkMobile,trigger:'blur'}
              ],
          },
          //控制分配角色对话框显示与隐藏
          setRoleDialogVisible:false,
          //需要被分配角色的用户信息
          userinfo:{},
        //所有角色的数据列表
          rolesList:[],
          //已选中角色id值
          selectedRoleId:''
        }
    },
    created() {
       this.getUserList() 
    },
    methods: {
        async getUserList(){
           const {data:res} =await this.$http.get('users',{params:this.queryInfo})
           if(res.meta.status!==200){
                return this.$message.error('获取用户数据失败');
           } 
            this.userlist=res.data.users;
            this.total=res.data.total;
            console.log(res)
       },
       //监听pagesize改变的事件
       handleSizeChange(newSize){
           console.log(newSize)
           this.queryInfo.pagesize=newSize;
           this.getUserList()
       },
       //监听页码值改变的事件
       handleCurrentChange(newpage){
           console.log(newpage)
           this.queryInfo.pagenum=newpage;
           this.getUserList()
       },
       //监听switch开关的改变
       async userStateChanged(userinfo){
           console.log(userinfo)
         const{data:res}= await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if(res.meta.status!==200){
            userinfo.mg_state=!userinfo.mg_state;
            return this.$message.error('更新用户状态失败！')
        }
        this.$message.success('更新用户状态成功！')
       },
        //    监听添加对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮，添加新用户
        addUser(){
             this.$refs.addFormRef.validate(async valid=>{
                 if(!valid) return
                 //可以发起添加用户的网络请求
                const{data:res} = await this.$http.post('users',this.addForm);
                if(res.meta.status!==201){
                    this.$message.error('添加用户失败！')
                }
                this.$message.success('添加用户成功！')
                //隐藏添加用户的对话框
                this.addDialogVisible=false;
                //重新获取用户列表
                this.getUserList();
             })
        },
        //展示编辑用户的对话框
        async showEditDialog(id){
            // console.log(id)
           const{data:res}= await this.$http.get('users/'+id);
           if(res.meta.status!==200) {
               return this.$message.error('查询用户信息失败')
           }
           this.editForm=res.data;
           this.editDialogVisble=true;
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields();
        },
        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                // console.log(valid)
                if(!valid) return
                //发起修改用户信息的数据请求
               const{data:res}=await this.$http.put('users/'+this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
                if(res.meta.status!==200){
                    return this.$message.error('更新用户信息失败！')
                }
                //提示修改数据成功
                this.$message.success('修改用户信息成功！')
                //隐藏添加用户的对话框
                this.editDialogVisble=false;
                //重新获取用户列表
                this.getUserList();
           })
        },
        //根据id深处对应的用户信息
        async removeUserById(id){
            //弹框提示用户是否删除
        const confirmResult=await this.$confirm('此操作将永久删除该用户，是否继续？', '确认信息', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
          center: true
        }).catch(err=> err)

        //如果用户确认删除，则返回值位字符串 confirm
        //如果用户取消了删除，则返回值位字符串 cancel
        // console.log(res)
            if(confirmResult!=='confirm'){
                return this.$message.info('已取消删除')
            }
           const {data:res}=await this.$http.delete('users/'+id);
           if(res.meta.status!==200){
               return this.$message.error('删除用户失败！')
           }
           this.$message.success('删除用户成功');
            this.getUserList();
        },
        //展示分配角色的对话框
        async setRole(userinfo){
            this.userinfo=userinfo

            //在展示对话框之前，获取所有角色的列表
            const {data:res} =await this.$http.get('roles')
            if(res.meta.status!==200){
                return this.$message.error('获取角色列表失败！')
            }
            this.rolesList=res.data
            // this.$message.success('获取角色列表成功！')
            // this.getUserList()
            this.setRoleDialogVisible=true
        },
        //点击按钮，分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }
           const {data:res} = await this.$http.put(`users/${this.userinfo.id}/role`,{rid:this.selectedRoleId})
            console.log(res);
           if(res.meta.status!==200){
               return this.$message.error('更新角色失败！')
           }
           this.$message.success('更新角色成功！')
           this.getUserList()
           this.setRoleDialogVisible=false
        },
        //分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId=''
            this.userinfo={}
        }
    },
}
</script>

<style lang='less' scoped>

</style>